123744920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{237971}}^1$

素因数の和:237995

約数の個数: 32

約数和(自身を含む): 299844720

約数和(自身を除く): 176099800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 237971, 475942, 951884, 1189855, 1903768, 2379710, 3093623, 4759420, 6187246, 9518840, 12374492, 15468115, 24748984, 30936230, 61872460, 123744920]

約数ペア:

[(1, 123744920), (2, 61872460), (4, 30936230), (5, 24748984), (8, 15468115), (10, 12374492), (13, 9518840), (20, 6187246), (26, 4759420), (40, 3093623), (52, 2379710), (65, 1903768), (104, 1189855), (130, 951884), (260, 475942), (520, 237971)]